Antergos-keyring is unknown trust [solved]

When I wanted to update my Arch / Antergos mac book before travelling this morning I was greeted by the following unfriendly message:

error: antergos-keyring: signature from "Antergos Build Server (Automated Package Build System) <admin@antergos.org>" is unknown trust

What the… Did somebody infiltrate the Arch/Antergos servers?! I was a bit worried, but of course one of the numerous forums had an answer already.

Running

sudo pacman-key --refresh-keys
sudo pacman -Sy antergos-keyring

did the trick and I could update my system again with pacman -Syu

full pacman error message log

error: antergos-keyring: signature from "Antergos Build Server (Automated Package Build System) <admin@antergos.org>" is unknown trust
:: File /var/cache/pacman/pkg/antergos-keyring-20170524-1-any.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: antergos-mirrorlist: signature from "Antergos Build Server (Automated Package Build System) <admin@antergos.org>" is unknown trust
:: File /var/cache/pacman/pkg/antergos-mirrorlist-20170527-1-any.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: broadcom-wl: signature from "Antergos Build Server (Automated Package Build System) <admin@antergos.org>" is unknown trust
:: File /var/cache/pacman/pkg/broadcom-wl-6.30.223.271_4.11.2_1-1-x86_64.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
error: pamac: signature from "Antergos Build Server (Automated Package Build System) <admin@antergos.org>" is unknown trust
:: File /var/cache/pacman/pkg/pamac-4.3.6-1-x86_64.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).
Do you want to delete it? [Y/n] n
Tagged with: #antergos #Arch Linux

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